<template>
    <div class="icons">
        <swiper :options="swiperOption">
            <swiper-slide v-for="(page,index) of pages" :key="index">
                <div class="icon" v-for="item of page" :key="item.id">
                    <div class="icon-img">
                        <img class="icon-img-content" :src="item.imgUrl" alt="">
                    </div>
                    <p class="icon-desc">{{item.desc}}</p> 
                </div>
            </swiper-slide>
            
        </swiper>
    </div>
</template>
<script>
export default {
    name:'Icon',
    props:{
        list:Array
    },
    data(){
        return{
            swiperOption:{
                loop:false
            } 
        }
    },
    computed:{
        pages(){
            const pages = [];
            // 遍历所有图标，超过8个换页
            this.list.forEach((item,index) =>{
                const page = Math.floor(index / 8);
                if(!pages[page]){
                    pages[page] = [];
                }
                pages[page].push(item);
            });
            return pages;
        }
    }
}
</script>

<style lang="less" scoped>
@import '~styles/varibles.less';
@import '~styles/mixins.less';
//样式穿透（/deep/是sass和less的穿透，stylus是 >>> )
    .icons /deep/ .swiper-container{
        height: 0;
        padding-bottom: 50%;
    }
    .icons{
        margin-top: .1rem;
        .icon{
        position: relative;
        float: left;
        overflow: hidden;
        width: 25%;
        height: 0;
        padding-bottom: 25%;
        .icon-img{
            position: absolute;
            top:0;
            left: 0;
            right: 0;
            bottom: .44rem;
            // box-sizing: border-box;
            padding: .1rem;
            .icon-img-content{
                display: block;
                margin: 0 auto;
                height: 100%;
            }
        }
        .icon-desc{
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: .44rem;
            line-height: .44rem;
            color: @darkTextColor;
            text-align: center;
            .ellipsis();
        }
    }
    }
    
    
</style>

